US6125221A - Three port optical filter - Google Patents
Three port optical filter Download PDFInfo
- Publication number
- US6125221A US6125221A US09/044,505 US4450598A US6125221A US 6125221 A US6125221 A US 6125221A US 4450598 A US4450598 A US 4450598A US 6125221 A US6125221 A US 6125221A
- Authority
- US
- United States
- Prior art keywords
- port
- filter
- optical
- thin film
- focusing lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
- G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
- G02B6/29364—Cascading by a light guide path between filters or filtering operations, e.g. fibre interconnected single filter modules
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
- G02B6/2937—In line lens-filtering-lens devices, i.e. elements arranged along a line and mountable in a cylindrical package for compactness, e.g. 3- port device with GRIN lenses sandwiching a single filter operating at normal incidence in a tubular package
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
Abstract
Description
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/044,505 US6125221A (en) | 1998-03-19 | 1998-03-19 | Three port optical filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/044,505 US6125221A (en) | 1998-03-19 | 1998-03-19 | Three port optical filter |
Publications (1)
Publication Number | Publication Date |
---|---|
US6125221A true US6125221A (en) | 2000-09-26 |
Family
ID=21932750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/044,505 Expired - Lifetime US6125221A (en) | 1998-03-19 | 1998-03-19 | Three port optical filter |
Country Status (1)
Country | Link |
---|---|
US (1) | US6125221A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1146362A2 (en) * | 2000-02-17 | 2001-10-17 | JDS Uniphase Inc. | Dichroic filter for wavelength separation |
US6381051B1 (en) * | 1998-09-03 | 2002-04-30 | Dicon Fiberoptics, Inc. | Switch employing partially reflective coating |
US20020071633A1 (en) * | 2000-01-24 | 2002-06-13 | Naoki Kimura | Wavelength multiplex optical communication module |
US6455841B2 (en) | 2000-03-02 | 2002-09-24 | Chorum Technologies Lp | Optical wavelength router based on polarization interferometer |
US6512615B2 (en) | 1996-10-29 | 2003-01-28 | Chorum Technologies Lp | Method and apparatus for wavelength multiplexing/demultiplexing |
US6515786B1 (en) | 2001-08-03 | 2003-02-04 | Chorum Technologies Lp | Bandwidth variable wavelength router and method of operation |
US6519060B1 (en) | 1999-06-04 | 2003-02-11 | Chorum Technologies Lp | Synchronous optical network in frequency domain |
US6545779B1 (en) | 1996-10-29 | 2003-04-08 | Chorum Technologies Lp | System for dealing with faults in an optical link |
US6545783B1 (en) | 1996-10-29 | 2003-04-08 | Chorum Technologies Lp | Optical wavelength add/drop multiplexer |
US6580845B1 (en) | 2000-08-11 | 2003-06-17 | General Nutronics, Inc. | Method and device for switching wavelength division multiplexed optical signals using emitter arrays |
US20040234196A1 (en) * | 2003-05-22 | 2004-11-25 | Seung-Hyun Cho | Device for adding and dropping optical signals |
US6847786B2 (en) | 1996-10-29 | 2005-01-25 | Ec-Optics Technology, Inc. | Compact wavelength filter using optical birefringence and reflective elements |
US7092587B1 (en) | 2002-08-16 | 2006-08-15 | Raytheon Company | Multichannel optical demultiplexer with varying angles of incidence to the light bandpass filters |
US7228025B1 (en) * | 2002-10-31 | 2007-06-05 | Finisar Corporation | Thin film interleaver |
US20080025313A1 (en) * | 1998-12-21 | 2008-01-31 | Xiaolin Lu | Communication network apparatus and method |
US20100220326A1 (en) * | 2009-02-27 | 2010-09-02 | Beckman Coulter, Inc. | Fluorescence Detection Instrument with Orthogonal Laser Entry |
EP4109159A1 (en) * | 2021-06-09 | 2022-12-28 | Corning Research & Development Corporation | Wavelength division multiplexing cassette for a fiber optic network and method of making same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4244045A (en) * | 1978-01-31 | 1981-01-06 | Nippon Telegraph And Telephone Public Corporation | Optical multiplexer and demultiplexer |
US5629995A (en) * | 1996-02-01 | 1997-05-13 | Jds Fitel Inc. | Wavelength filter arrangements for use in fiber optics |
US5652814A (en) * | 1994-12-21 | 1997-07-29 | E-Tek Dynamics, Inc. | Integrable fiberoptic coupler and resulting devices and systems |
US5680237A (en) * | 1995-11-16 | 1997-10-21 | Jds Fitel Inc. | Graded index lens system and method for coupling light |
US5737104A (en) * | 1995-12-18 | 1998-04-07 | Dicon Fiberoptics | Wavelength division multiplexer and demultiplexer |
US5790314A (en) * | 1997-01-31 | 1998-08-04 | Jds Fitel Inc. | Grin lensed optical device |
-
1998
- 1998-03-19 US US09/044,505 patent/US6125221A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4244045A (en) * | 1978-01-31 | 1981-01-06 | Nippon Telegraph And Telephone Public Corporation | Optical multiplexer and demultiplexer |
US5652814A (en) * | 1994-12-21 | 1997-07-29 | E-Tek Dynamics, Inc. | Integrable fiberoptic coupler and resulting devices and systems |
US5680237A (en) * | 1995-11-16 | 1997-10-21 | Jds Fitel Inc. | Graded index lens system and method for coupling light |
US5737104A (en) * | 1995-12-18 | 1998-04-07 | Dicon Fiberoptics | Wavelength division multiplexer and demultiplexer |
US5629995A (en) * | 1996-02-01 | 1997-05-13 | Jds Fitel Inc. | Wavelength filter arrangements for use in fiber optics |
US5790314A (en) * | 1997-01-31 | 1998-08-04 | Jds Fitel Inc. | Grin lensed optical device |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6545779B1 (en) | 1996-10-29 | 2003-04-08 | Chorum Technologies Lp | System for dealing with faults in an optical link |
US6847786B2 (en) | 1996-10-29 | 2005-01-25 | Ec-Optics Technology, Inc. | Compact wavelength filter using optical birefringence and reflective elements |
US6545783B1 (en) | 1996-10-29 | 2003-04-08 | Chorum Technologies Lp | Optical wavelength add/drop multiplexer |
US6512615B2 (en) | 1996-10-29 | 2003-01-28 | Chorum Technologies Lp | Method and apparatus for wavelength multiplexing/demultiplexing |
US6381051B1 (en) * | 1998-09-03 | 2002-04-30 | Dicon Fiberoptics, Inc. | Switch employing partially reflective coating |
US7830885B2 (en) | 1998-12-21 | 2010-11-09 | AT&T Intellectual Property II, LLP | Communication network apparatus and method |
US8767533B2 (en) | 1998-12-21 | 2014-07-01 | At&T Intellectual Property Ii, L.P. | Communication network apparatus and method |
US20080031264A1 (en) * | 1998-12-21 | 2008-02-07 | Xiaolin Lu | Communication network apparatus and method |
US20080031158A1 (en) * | 1998-12-21 | 2008-02-07 | Xiaolin Lu | Communication network apparatus and method |
US20080025335A1 (en) * | 1998-12-21 | 2008-01-31 | Xiaolin Lu | Communication network apparatus and method |
US20080025313A1 (en) * | 1998-12-21 | 2008-01-31 | Xiaolin Lu | Communication network apparatus and method |
US8149734B2 (en) | 1998-12-21 | 2012-04-03 | At&T Intellectual Property Ii, L.P. | Communication network apparatus and method |
US8174968B2 (en) * | 1998-12-21 | 2012-05-08 | At&T Intellectual Property Ii, L.P. | Communication network apparatus and method |
US9124487B2 (en) | 1998-12-21 | 2015-09-01 | At&T Intellectual Property Ii, L.P. | Communication network apparatus and method |
US8072904B2 (en) | 1998-12-21 | 2011-12-06 | At&T Intellectual Property Ii, L.P. | Communication network apparatus and method |
US6519060B1 (en) | 1999-06-04 | 2003-02-11 | Chorum Technologies Lp | Synchronous optical network in frequency domain |
US6760510B2 (en) * | 2000-01-24 | 2004-07-06 | Nec Corporation | Wavelength multiplex optical communication module |
US20020071633A1 (en) * | 2000-01-24 | 2002-06-13 | Naoki Kimura | Wavelength multiplex optical communication module |
EP1146362A2 (en) * | 2000-02-17 | 2001-10-17 | JDS Uniphase Inc. | Dichroic filter for wavelength separation |
EP1146362A3 (en) * | 2000-02-17 | 2004-05-19 | JDS Uniphase Inc. | Dichroic filter for wavelength separation |
US6611642B1 (en) * | 2000-02-17 | 2003-08-26 | Jds Uniphase Inc. | Optical coupling arrangement |
US6455841B2 (en) | 2000-03-02 | 2002-09-24 | Chorum Technologies Lp | Optical wavelength router based on polarization interferometer |
US6580845B1 (en) | 2000-08-11 | 2003-06-17 | General Nutronics, Inc. | Method and device for switching wavelength division multiplexed optical signals using emitter arrays |
US6515786B1 (en) | 2001-08-03 | 2003-02-04 | Chorum Technologies Lp | Bandwidth variable wavelength router and method of operation |
US7092587B1 (en) | 2002-08-16 | 2006-08-15 | Raytheon Company | Multichannel optical demultiplexer with varying angles of incidence to the light bandpass filters |
US7561766B2 (en) * | 2002-10-31 | 2009-07-14 | Finisar Corporation | Thin film interleaver |
US20070223860A1 (en) * | 2002-10-31 | 2007-09-27 | Finisar Corporation | Thin film interleaver |
US7228025B1 (en) * | 2002-10-31 | 2007-06-05 | Finisar Corporation | Thin film interleaver |
US6952506B2 (en) * | 2003-05-22 | 2005-10-04 | Electronics And Telecommunications Research Institute | Device for adding and dropping optical signals |
US20040234196A1 (en) * | 2003-05-22 | 2004-11-25 | Seung-Hyun Cho | Device for adding and dropping optical signals |
US20100220326A1 (en) * | 2009-02-27 | 2010-09-02 | Beckman Coulter, Inc. | Fluorescence Detection Instrument with Orthogonal Laser Entry |
US8284402B2 (en) | 2009-02-27 | 2012-10-09 | Beckman Coulter, Inc. | Fluorescence detection instrument with orthogonal laser entry |
EP4109159A1 (en) * | 2021-06-09 | 2022-12-28 | Corning Research & Development Corporation | Wavelength division multiplexing cassette for a fiber optic network and method of making same |
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